420                                 DenseSet<Instruction *> &Users);
424                                 DenseSet<Instruction *> &Users);
508   for (User *U : I->users()) {  in hasUsesOutsideLoop()
526   for (auto *User : IV->users()) {  in isLoopControlIV()
546     // The users of the IV must be a binary operation or a comparison  in isLoopControlIV()
551         for (auto *UU : User->users()) {  in isLoopControlIV()
641   for (User *U : C->users()) {  in add()
673 // Collect the set of all users of the provided root instruction. This set of
674 // users contains not only the direct users of the root instruction, but also
675 // all users of those users, and so on. There are two exceptions:
678 //   use set (even if they are users). This is used, for example, to exclude
682 //   if they are users, but their users are not added. This is used, for
688   DenseSet<Instruction *> &Users) {  in collectInLoopUserSet()  argument
692     if (!Users.insert(I).second)  in collectInLoopUserSet()
719 // Collect all of the users of all of the provided root instructions (combined
725   DenseSet<Instruction *> &Users) {  in collectInLoopUserSet()  argument
727     collectInLoopUserSet(Root, Exclude, Final, Users);  in collectInLoopUserSet()
770   for (auto *UU : U->users()) {  in isLoopIncrement()
782   for (auto *I : Base->users()) {  in collectPossibleRoots()
823   // If we found non-loop-inc, non-root users of Base, assume they are  in collectPossibleRoots()
834   // Calculate the number of users of the base, or lowest indexed, iteration.  in collectPossibleRoots()
839   // Check that every node has the same number of users.  in collectPossibleRoots()
844       LLVM_DEBUG(dbgs() << "LRR: Aborting - Root and Base #users not the same: "  in collectPossibleRoots()
857   // All its users must be simple arithmetic ops.  in findRootsRecursive()
866   for (User *V : I->users()) {  in findRootsRecursive()
979     for (auto *IVU : IV->users()) {  in findRoots()
1123   for (auto *U : I->users()) {  in instrDependsOn()
1161   // collect the set of all users of some root instructions, these reduction  in validate()
1184     for (auto *U : LoopControlIV->users()) {  in validate()
1188       for (auto *UU : IVUser->users()) {  in validate()
1244       // Skip over the IV or root instructions; only match their users.  in validate()
1573     // Replace users with the new end-of-chain value.  in replaceSelected()
1574     SmallInstructionVector Users;  in replaceSelected()  local
1575     for (User *U : PossibleReds[i].getReducedValue()->users()) {  in replaceSelected()
1576       Users.push_back(cast<Instruction>(U));  in replaceSelected()
1579     for (Instruction *User : Users)  in replaceSelected()
1612 //   - Ensure that both matched instructions don't have any external users